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The Railway Educational Bureau How to Locate Defective Wheels Unit SS.9
The Railway Educational Bureau Instruction Paper Unit SS.9 How to Locate Defective Wheels
Soft Cover
42 pages
Copyright 1920
CONTENTS
General
Cast Iron Wheels
Manufacture of Cast Iron Wheels
Defects at Foundry
Defects at the Railroad Shop
Defects on the Road
Slid Flat Wheels
Brake Burn
Seamy tread
Shell-Out
Worn Through Chill
Chipped Rim
Chipped Flange
Sharp Flange
Vertical Flange
Cracked Wheels
Loose Wheels
Manufacture of Steel Car Wheels
Defects of Steel Wheels
Inspection in Yards
Classifying and Reporting Defects
Miscellaneous
Wheel Specification
Material and Chill
Physical Properties and Tests
Retest
Dimensions Taping and Gauging
Marking
Conclusion
Examination Questions
INTRODUCTION
This pamphlet, containing information on How TO LOCATE DEFECTIVE WHEELS was issued to employes of several railroads, to assist in promoting safety in operation. The idea was that it might aid some employee to discover some dangerous defect that had been overlooked by a regular inspector and to take prompt action to prevent the possibility of an accident resulting from the defect.
In view of the fact that this pamphlet contains a good deal of general information about the manufacture of car wheels, manner of inspecting at the foundry, foundry defects, rules for fitting up wheels and axles, defects that occur in the shop, and other information in addition to how to locate defective wheels, it was decided to make it one of the regular lessons of the SHOP PRACTICE COURSE. It is believed that mechanical department employes generally will find a good deal of valuable information in the pamphlet, which will well repay them for the time spent studying it, even though it by no means covers all of the actual shop practice of fitting up wheels and axles.
In studying this pamphlet it should be remembered that each road has its own particular standard for marking wheels and for reporting defective wheels; and, generally speaking, each road has its own set of specifications for the manufacture and testing of wheels. Such information as there is in this pamphlet relating to a specific railroad is given for the information of the student and to guide him in finding out, if he desires to, what the similar markings, reports, and specifications are for his own road.
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